Packer for oil-wells



(No Model.)

J. D. BROODER.

EAGKBR POR OIL WELLS.

No. 350,655. Patented Oct. 12. 1886.

WITNESSES INVENTOR 70. g2g@ BY 4. v-c M ATTORNEYS.

N. PETERS, Phammmmphcr. wnslungnm, uc.

. I5 reliable casilyeapplied packer for the tubing UNITED STATES PATENT OFFICE.

JOHN D. BROODER, OF KANE, ASSIGNOR TO HIMSELF, ANI) F. J. CLEMENGER, OF SOUTH OIL CITY, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 350,655, dated October 12, 1886. Application tiled November l0, 1885. Renewed August 6, 1886. Serial No. li0,20.). (No model.)

T @ZZ whom it may concern:

Beit known that. I, JOHN D. BnooDER, of Kane, McKean county, and State of Pennsylvania, have invented a new and useful Improvementin Packers for Oil-XVellS, of which the following is a speciiication, reference being had to the annexed drawings, forming a part thereof, in which- Figure l is a side elevation. Fig. 2 is a ro longitudinal section. Fig. 3 is a transverse section taken on line x lr in Fig. l.

Similar letters of reference indicate corresponding parts in all the Figures.

The object of my invention is to provide a of oil-wells and gas-we1ls.

lWIy invention consists ot' a conical expander placed between two rubber packing-rings, and the combinationtherewith ot' a device t'orl'orc- 2o ing the rubber packing-rings upon the conical expander'.

The tubesection A is provided at one end with a right-hand thread, to admit ot` its at-y tachment to the lower end of'the well-tubing.

The remaining portion ot' the tube is provided with a left-hand thread. Upon the righthand thread ot' the tube A is placed a collar, B, and upon the lelt-hand thread, (t, is placed a nut, O, and between the nut O and the collar B is placed an expander, D, consisting of a double cone apertured to receive the tube A. The double cone D ispreferably made ot' glass, but it may be made of any other non-corro sive material. Between the smaller' ends of 3 5 the double cone D and collar B and nut O are placed elastic rubber rings E E', which may be expanded by turning the nut C, thus forcing the elastic ring E upon one end of the double cone D, and driving the other end of 4o the double cone into the elastic ring E, thus expanding both ofthe elastic rings.

To prevent the wear of the elastic ring E'a washer, c, is placed between the nut O and the elastic ring. A collar, F, fitting loosely 4.5 over the left-hand threads, and of the saine size externally as the nut C, is connected with the nut O by three outwardly-bowedsprings, d, each having in the middle an annular projection, c, for engaging the walls ol" the well to which the packing is applied. 5o

My improved packer is secured tothe lower end ot the tubing of,the well, and it is lowered with the tubing into the well in an unexpanded condition, and when it reaches the position it is to occupy in the well the pipe is turned so as to force the rings E E onto the expander D in the manner already described, thus causing the elastic rings to entirely iill the well.

When it is desired to remove the packer 6o from the well, it is only necessary to tarn the pipe in the opposite direction, so as to relieve the pressure ot' the nut O against the elastic ring E', when thc rings E E will contract of their own elasticity. The projections of the springs d engage the walls ot' the well and retain the nut C in a tixed position, so as to admit of turning the tubeA in either direction, and thc beveled l'orm of the projections of the springs permits ot' the insertion and removal 7o ot' the packer wiihontliability ot' catching upon the walls ofthe well.

It is obvious that a single elastic ring might be employed by nsin two separate cones, with their smaller.' ends entering opposite ends ot' 7 5 the rubber ring. It is also obvious that a series of rings and ot' single cones might be employed in a similar way. Therefore I do not limit or coni-ine my invention to the preciseA form herein shown and described. 8o

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is*

l. In a packer ior oil-wells and gaswells, an

lexpandirig-cone formed ot' glass, substantially S5 as herein spceitied.

2. In a packer for oil-wells and gas-wells, the combination, with a tube'section having upon one end a right-hand thread and upon the other a let't hand thread, ot' the collar I3, 9c elastic rin gsE E, the double cone D, an d means for forcing the elastic rings upon the double cone, as herein specified.

3. In a packer for oil-wells and gas-wells, the combination ot' the tube A, havingaright- 95 hand thread on one end and aleft-handthread e 350,635l Y- A on the other end, 'i1-collar, B, v'elastic rings E E', D, nutI C, collar F, springs d, provided with the doubleu cone D, the nut C, springs d, proproj eetions e, and the Washer c, Substantially as 1o vided with projections e, and :L collar, F, subherein shown and described.'y

stantiaily as herein shown and described. v 5 4. As an improved article of manufacture, JOID D BROODDR" a packer for olwveiis, formed of the tube A, Witnesses:

provided with right and left hand threads, the JOHN HAMILL,

collar B, elastic rings E E', double glass cone l NV. B. SMXTH. 

